Brick-machine



UNITED STATES PATENT `Trice.

`ePucK-t/IAol-IINE.v

Specification forming part of Letters Patent No. 13,893, dated August 23, 1864.

T 0 all whom it may concern:

Be it known that we, WILLIAM BAKKER and GAYLORD MARTIN, of Schenectady, county of' Schenectady, State of New York, have invented a new and Improved Brick- Machine; and we do hereby declare that the following is a full, clear, and exact description thereof, reference bein g had to the accompanying drawings, making a part of this specification, in which- Figure l is a vertical longitudinal section through the center of our improved press. Fig.2 is a front elevation of the machine. Fig. 3 is a horizontal section through the machine, showing the arrangement of' the two followers with respect to the press-box. Fig. 4 is an enlarged View ofthe front part of the machine, showing by a vertical section through the press-box the interior construction ot' the same.

Similar letters of reference indicate correspondin g parts in the several figures.

The improvements which form the subject of our invention belong to that class of brick- Inaking machines which have a pressbox arranged on the outside of the clay-box or pugmilt in such manner that the clay will be forced directly from the pug-mill and pressed into the mold-boxes.

The object of our invention is to provide for introducing the mold-boxes beneath the pressbox from one side, and at or near the front of the machine, and then moving said molds out ofthe way, all by automatic means, as will be hereinafter described.

To enable others skilled in the art to make and use our invention, we will describe its construction and operation.

In the accompanying drawings, A represents a rectangular box which is mounted upon and braced b t a framework A in the eenter of this box is a vertical shaft, B, carrying on its upper end a horizontal spur-wheel, B. This shaft B carries a number of radial arms, a a, which are so constructed and arranged that theydisintegrate the clay in box A, and atl the saine time force the clay downward and through an opening, a, into a rectangular pressbox, (l, which is a-pplied to the front side of the pug-mill, as shown in Figs. l and 3.

This press-box C has an open bottom divided by cross-bars, as shown in Figs. 3 and 4, and it is also provided with a plunger, G', which platform, D, is arranged, which is supported at its rear end by pivot-bearings c o upon vertically-adjustable brackets d d, and again supported beneath the pressbox G upon f'riction-rollers, which have their bearings in short arms d d', that are secured to a rock-shaft, d2. This shaft d2 has its bearings in brackets e e, which are vertically adjustable, and it is rocked by means of a lever, e. (Shown in Figs.'

2 and 4.)

Projecting out at right angles from the table or platform D, and in a horizontal plane with said platform, is a shelfor table, D', which is attached by hooks or permanent means to the platform D at one end and supported by legs at its outer end. To facilitate the description of my invention, I shall designate plat-form D as the longitudinal platform,l and the platform D as the transverseplatform. The mold-boxes, after theyhave been emptied, are put upon the transverse platform, and here they are acted upon by a follower, E, hereinafter described, and moved up behind the press box U- in a line with this box. rlhe second follower, E', which operates on the longitudinal platform, is now brought into operation, and moves the mold box in front otl it under the press-box. The plunger C descends after this operation and fills the mold-box under the press-box with clay, after which the filled box is moved forward, out of' the way, by the follower E, and removed from the machine, to be emptied.

The horizontal spur-wheel B on the top of' vertical shaft B engages with pinionwheels b b2, and gives rotary motions to the shafts g g of these pinions. 'These shafts have cranks g2 g on their outer ends, which give motion,respectively, to the plungerin the press box U and to the follower E. lhe crank g2, which operates the plunger C', is connectedn by means of a pitman, h, to a vertically-reciplhis cross-head lt rocating cross head, It.

its upstroke it again ceases for a short time to operate upon said plunger. The cross-bar khas two pawls, l l, pivoted to it, which are acted upon by a spring, 7c', that forces their pointed ends outward into notches cut into the vertical guides j, as clearly shown in Figs. 2 and 4. v

When it is desired to increase or diminish the pressure on the clay in the mold-boxes and press-box, or to time the movements of the plunger C' with those of the followers, the crossbar 7c is adjusted nearer to or farther from the upper ends of the guide'rods and xed in the desired position by means of the pawls Z l The crank g3 is connected to a lever, G, by means of a pitman, G', and this lever is connected to a longitudinal sliding rod, H, which works between suitable guide-jaws arranged on the bottom of the pug-mill fra-me, as shown in Fig. 1. This slide H carries on its forward end a horizontal transverse beam, J, carrying on its ends small rollers, which roll upon the iop of platform D, and in front of this roller-v beam J the follower E' is arranged and connected to the beam J by means of adjustable rods, as indicated in dotted lines, Fig. 3.

Y The follower E, which works on the trans verse or side table, D', is connected to a vibrating arm, K, by ajaw passing through an oblong slot in said arm, as shown in Fig. 2. The upper end of arm K is pivoted to the frame of the pug-mill, and at a point near this end of said arm a horizontal transverse sliding rod, L, is connected by a pin passing through an oblong slot in the vibrating arm. 'lhe follower E is moved inward or toward the pug-mill by the action of a finger, m, on the crank-shaft g, against a projection on the slide L, and this followerFl is thrown out again by a spring or other equivalent means applied so as to operate upon the slide L.

By arranging a platform, D', for receiving tl e empty mold-boxes near the front end of the machine, and substantially as hereinabove described, the workmen engaged in removing the filled Inold-boxes and returning the empty ones for refilling have their labor greatly lessened, as they can remove said mold-boxes very near the point of their introduction into the machine. The first follower, E, removes the boxes behind the press-box and in a line with it; then the second follower moves forward and pushes a mold-box under the press-box, at the same time pushes a lled mold out from under this press-box, to be carried off and emptied.

During the operation of the follower in forcing the mold-boxes from under the pressbox, the plunger G' remains stationary, after which this plunger is elevated to admit of a fresh supply of clay being forced into the press box from the pug-mill, the plunger then descends and forces the clay into the cells of a mold-box, while the followers are performing their respective work of preparing to force the empty boxes under the press-box and the filled boxesV out upon the exposed portion of the table or platform D. That portion of the platform D which is directly beneath the press-box C is made up of transv verse rollers, over which the mold-boxes pass. These rollers facilitate the passage of these mold-boxes beneath the press-box, particularly when the boxes are filled with clay.

rlhe particular manner of mounting the platform D which has been described enables us to adjust this platform up to or from the press-box C, according to circumstances, and when it is desired to quickly get at the bottom of the pressbox to remove any obstruction therefrom the front end of the platform can be depressed by moving the lever e' toward the operator; or the door r, opening outward from the pressvbox, may be used for this purpose. v

What we claim as new, and desire to secure by Letters Patent, is-

1. Automatically feeding the mold-boxes from one side of and near the front part of the machine up to their work by giving to said boxes a transverse and a longitudinal movement, substantially as described.

2. The employment of two followers, E E', in combination with the platforms D D' and press-box C, the same being so arranged as to operate substantially as described.

3. Making the platform D vertically adjustable, when this platform is pivoted at one end and supported at ornear the other end upon a rocking bar, or upon rocking arm`s or their equivalents,'substantially as described.

4.. The construction of the vertically-rechirocatin g plunger-frame, of guide-rodsjj, pawls ll, adjustable cross-head k, and reciprocating cross head h', substantially as and for the purposes herein described.

5. Making the follower E adjustable, substantially as and for the purposes described.

6. Giving the required movements to the several parts of the machine from a single central shaft, B, through the medium of spurwheel B', pinions b' b2, and cranks g2 g3, in combination with the finger m, all operating substantially as described.

7. The arrangement of a receiving-platform and follower on one side of a brick-machine, having a press-box applied to a pug-mill, substantially as and for the purposes described.

WILLIAM BARKER. GAYLORD MARTIN.

Witnesses:

EDWARD RosA, J. HARMAN. 

